MATROX 571-0201 亿询就心动

西门子PLC模块6

　　可编程控制装置是由现代化生产的需求而产生的，可编程序控制装置的分

　　西门子PLCS7-200系列西门子PLCS7-200系列

　　类也必然要达到现代化生产的需求。

　　一般来讲可以从三个角度对可编程序控制装置进行分类。其一是从可编程序控制装置的控制规模大小去分类，其二是从可编程序控制装置的性能低去分类，其三是从可编程序控制装置的结构特点去分类。

　　控制规模

　　一般分为大型机、中型机和小型机。

　　西门子PLCS7-300系列西门子PLCS7-300系列

　　小型机: 小型机的控制点一般在256点之内,适合于单机控制或小型系统的控制。

　　西门子小型机有S7-200：处理速度0.8~1.2ms ；存贮器2k ；数字量248点；模拟量35路 

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